Trimble ELIZABETH35 Hi Power Low Band Transmitter User Manual 568454
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- 1. User Manual Low band RF Power Amp
- 2. User Manual Lowband Transmitter
User Manual Low band RF Power Amp
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| Mirror Download [FCC.gov] | |
| Document ID | 568454 |
| Application ID | UQbhA64Oc74zzQ3mLcQvJA== |
| Document Description | User Manual Low band RF Power Amp |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Microsoft Word - pdf |
| Filesize | 88.11kB (1101313 bits) |
| Date Submitted | 2005-08-04 00:00:00 |
| Date Available | 2005-07-28 00:00:00 |
| Creation Date | 2005-08-05 07:03:02 |
| Producing Software | Acrobat Distiller 5.0.5 (Windows) |
| Document Lastmod | 2005-08-05 07:03:02 |
| Document Title | Microsoft Word - 568454.DOC |
| Document Creator | PScript5.dll Version 5.2 |
| Document Author: | Administrator |
TRM-1
Low-band RF Power Amplifier
Deleted:
Formatted
Product Requirements Document
Deleted: Version 1A¶
Revised August 20, 2003
Deleted: April 147, 200331057
Deleted: May 3, 2003
Deleted: July 1, 2003nely31
Deleted: T
Vytek Wireless
Wireless Products Division
2310 Cousteau Court
Vista, CA 92083, USA
(760) 536-1000
www.vytek.com
Vytek TRM-1 PRD
TABLE OF CONTENTS
Deleted: Technical Brief 3¶
Scope 3¶
Functionality 3¶
Design Philosophy 3¶
Robustness 3¶
Implementation and Construction 3¶
Operation 4¶
Specifications 4¶
Hardware Block Diagram 6¶
Interface Definitions 7¶
Power Supply Connector 7¶
Power Amplifier Module Connector 8¶
Filter / Coupler Module Connector 8¶
Rear Panel DC Power Connector 9¶
Rear Panel RS232 Connector 9¶
Controller Connections 10¶
FPGA Register Definitions 12¶
Software Description 13¶
Alarms Types & Behavior 13¶
Power Amplifier Alarms 13¶
Power Supply Alarms 15¶
“Push” Enabling for alarm conditions 15¶
Alarm Algorithms 16¶
State Machine 17¶
PA Cutover 18¶
Manual PA/PS Offline 18¶
... [1]
Technical Brief.....................................................................................................................3
Scope................................................................................................................................3
Functionality ....................................................................................................................3
Design Philosophy ...............................................................................................................3
Robustness .......................................................................................................................3
Implementation and Construction....................................................................................3
Operation..........................................................................................................................4
Specifications.......................................................................................................................4
Hardware Block Diagram ....................................................................................................6
Interface Definitions ............................................................................................................7
Power Supply Connector .................................................................................................7
Power Amplifier Module Connector ...............................................................................8
Filter / Coupler Module Connector..................................................................................8
Rear Panel DC Power Connector.....................................................................................9
Rear Panel RS232 Connector...........................................................................................9
Controller Connections ..................................................................................................10
FPGA Register Definitions ............................................................................................12
Software Description .........................................................................................................13
Alarms Types & Behavior .............................................................................................13
Power Amplifier Alarms............................................................................................13
Power Supply Alarms ................................................................................................15
“Push” Enabling for alarm conditions ...........................................................................15
Alarm Algorithms ..........................................................................................................16
State Machine.................................................................................................................17
PA Cutover.....................................................................................................................18
Manual PA/PS Offline ...................................................................................................18
Serial Port Commands available to User .......................................................................19
LEDs ..................................................................................................................................20
Deleted: Technical Brief 3¶
Scope 3¶
... [2]
Deleted: Technical Brief 3¶
Scope 3¶
... [3]
Deleted: Technical Brief ¶
Scope ¶
... [4]
Deleted: Technical Brief 3¶
Scope 3¶
... [5]
Deleted: Technical Brief ¶
Scope ¶
... [6]
Deleted: Technical Brief 3¶
Scope 3¶
... [7]
Deleted: ¶
Formatted
LIST OF TABLES
Table 1: Specifications............................................................................................................................................ 5
Table 2: Power Supply Connector .......................................................................................................................... 7
Formatted
... [8]
Formatted
... [9]
Deleted: 10
Formatted
Table 5: Power Amplifier Connector...................................................................................................................... 8
Deleted: 20
Table 6: Rear Panel RS232 Connector ................................................................................................................... 9
Formatted
Table 7: Power Amplifier Alarms......................................................................................................................... 13
Table 8: Serial Port Commands available to User ................................................................................................ 19
... [10]
Deleted: 14
... [11]
Deleted: Table 1: Specifications 5¶
Table 2: Power Supply Connector ...7¶[12]
Formatted
... [13]
Deleted: Table 1: Specifications 5¶
Table 2: Power Supply Connector ...7¶[14]
Formatted
... [15]
Deleted: Table 1: Specifications ¶
Table 2: Power Supply Connector ...¶ [16]
Formatted
... [17]
Deleted: Table 1: Specifications ¶
Table 2: Power Supply Logic ... [18]
Formatted
Formatted
Vytek TRM-1 PRD
... [19]
Deleted: ¶
John Sonnenberg¶
Vytek Wireless¶
Vista, CA ¶
¶
Technical Brief
Scope
Page Break
The scope of this PRD is to describe the technical implementation of a custom modular Low-Band RF Power
Amplifier Unit. The PA is part of a wide-area data network base station. It is non-linear, with redundancy
built-in for extra reliability and up-time.
Functionality
The amplifier takes in a constant-envelope (CE) RF signal at a level of approximately 5dBm, and amplifies it to
a level of 56dBm (400 watts). The amplifier module and the power supplies are all fully redundant. A CPU
monitors the amplifier, manages alarms, and controls the switching of redundant circuits.
The internal CPU provides a Command Line Interface (CLI) via an RS-232 serial port, for an external device to
monitor and control its operation.
Deleted: Final PA
Deleted: circuit
Deleted: ,
Deleted: y circuit, the cooling fan, and
the driver circuit
The Amplifier runs off of 90-130V AC input. The CPU controller will also operate off of an external DC input,
if available.
Deleted:
Design Philosophy
Page Break
Robustness
The design will incorporate, to the extent feasible and cost effective, margin against the specified criteria. In
each case the margin is determined from the expected normal variations in manufacturing parameters and
device variations as they apply to the design. Additionally, the product incorporates robust circuit design to
require minimal alignment or tuning during test. To the extent possible, all components will be surface mount
and utilize multiple source parts.
The amplifier must self-protect against all fault conditions. In particular, care is taken to prevent damage due
to:
Formatted: Bullets and Numbering
1. Reverse DC voltage
2. RF overdrive
3. High VSWR on output
4. Over-temperature
5. Failure of any LRU
Implementation and Construction
The amplifier is divided into these sections, each section capable of being tested by itself.
Formatted: Bullets and Numbering
1. Two field replaceable 500 watt RF Amplifier Modules.
2. An RF switch to select which output stage is routed to the antenna.
3. Lowpass Filter and RF wattmeter with directional coupler.
4. DC monitoring (current and voltage)
5. CPU Controller (bias voltage generation, AGC management, monitoring, CLI, alarming…)
6. Two field replaceable AC power supplies.
Vytek TRM-1 PRD
Operation
The amplifier should look like a gain block, with some AGC for power leveling.
It powers up in the “on” state.
Deleted: Expected Operating
Performance
Specifications
Parameter
Customer Specification
Design Goals
Temperature Range
Shock
0 to +50 C ambient
-30 to +60 C
Size
19” rack mount, 6 U tall, 17” deep.
EMC, Line Faults and
Lightening Protection
19” open telecom rack mount
TBD height
TBD
PAs/Drivers, Fans, AC-DC Supplies
25,000 hours for soft failures
80,000 hours for hard failures
10 minutes max to replace LRU to fix
soft failure
UL Approved AC power supply
Lightening protection on RF output
Hot Standby stages
PA, Driver, Fan, AC-DC converter
Formatted
Notes
System
Weight
Line Replaceable Units
MTBF
Time To Repair
So LRUs can be easily packed and
shipped via Fedex
<50 lbs
PAs/Drivers, Fans, AC-DC Supplies
50,000 soft fail
100,000 hrs hard-fail
2 minutes to replace LRUs
Deleted: 5
Deleted: 6
Plug-in LRUs are hot swappable
Soft failures don’t degrade performance.
Room temperature calculations.
Deleted: Multiple chassis may be
appropriate
Deleted:
UL Approved AC power supply
Lightening protection on RF output
15kV ESD on all other I/Os
PA, Driver, Fan, AC-DC converters
Power Amp
Power Line Input
AC Power Switch and
Breaker
Frequency Range
Input Signal
Input Connector
Output Power
Harmonics and Spurious
110 VAC; 60 Hz
< 10 Amps
On front or rear panel
35.15 to 35.75 MHz
+5 dBm (+/-3 dB)
50 ohms
single carrier
constant envelope phase modulation
< 40 kHz bandwidth
nominally 2 Hz pulse with 99% duty
<-30dBm in OFF mode,
Rise/Fall time < 5 mS and >100uS
Panel-mount N-Type female
400 W (+/- 1 dB)
Per FCC 22.359 (b)(1)
with 10 dB margin for +/- 50 kHz
Also, close-in spurs (+/- 15 kHz) < -45
dBc
Harmonic Filter
Type Approvals
Output Impedance
Output Match
Output Connector
Duty Cycle
90-130VAC, <10A at 110Vac
Rear Panel
Bump-proof
32-38 MHz
+5 dBm (+/-3 dB)
50 ohms
single carrier
constant envelope phase modulation
< 40 kHz bandwidth
nominally 2 Hz pulse with 99% duty
<-30dBm in OFF mode,
Rise/Fall time < 5 mS and >100uS
TNC female
Programmable 250-500 watts +/- 1dB
0-50C; +/-1.5dB –30 to +60 C
Per FCC 22.359 (b)(1)
with 10 dB margin for +/- 50
kHz
No tuning
Also, close-in spurs (+/- 15 kHz) < 45 dBc
All harmonics up to 500MHz, <80dBc
None
50 ohms
Operate into 2:1 VSWR
No damage into infinite VSWR
7/16 DIN female
100 %
Soft-fail cut-over
None
50 ohms
Operate into a 3:1. No damage into
infinite VSWR.
7/16 DIN female
100% at up to 500 watts.
< 2 Seconds
Deleted: o
Deleted: N
Assume “authorized bandwidth” of 20
KHz
Test with pure carrier
Do we need additional limits such as
those for Unintentional Radiators or
Restricted Bands as specified in Part 15?
No
Some tower contracts require the use of
a “harmonic filter.” While the
performance of this device isn’t
specified, we should have something in
the P.A. that we can point to and call a
“harmonic filter.”
Trimble will take responsibility for this
Will not usually be operated below 50 %
Time to switch over to redundant backup circuitry.
Deleted: <500mS
Deleted: 00
Controller
Battery Power Input
Vytek TRM-1 PRD
10-16 VDC
10-32V
Deleted: mS
Controller operates independent of AC
< TBD Amps
power to power amp. Battery MUST be
present in order to ensure operation of
controller when amplifier power is off.
Control Interfaces
Serial port for local console
Measurements
Voltages, currents, forward and
reflected RF power, temperature, fan
health, alarms, PA stage in use.
Via Control Serial port.
Alarms
Console Protocol
Network Protocols
Connectors
Firmware update
Soft-fail modes
Hard reset input
Internal Measurement
Accuracy
RF leveling time constant
for changes in drive level.
Antenna Switching
VT100 over serial port
XModem or Ymodem for software
upgrading
none
DB9 female for console
Via serial port
Fan monitoring
PA stage
Driver Stage
AC-DC converter
Via RTS pin on Serial Port
Serial port for local console,
38400 bps, N,8,1.
Voltages, currents, forward and
reflected RF power, temperature, fan
health, alarms, PA stage in use.
Via Control Serial port. LED alarm
status.
VT100 over serial port
XModem or XModem/1k for software
upgrading
none
DB9 Female
Via serial port
Fan monitoring
PA stage
Driver Stage
AC-DC converter
Via RTS pin on Serial Port or via
serial command. RTS reset ability
may be defeated by removal of
internal jumper.
Power +/- 0.5dB
Voltage +/- 2%
Current +/- 5%
Temperature +/- 3 degrees
<10 seconds.
No “Hot Switching”
Deleted: 192
As appropriate on all fans, power
supplies, power amp stages
Deleted: o
Deleted: External alarm output.
Deleted: Ymodem
Deleted: E
Failure of any one of these components
will not cause the amplifier to cease
operation.
Deleted: A PA failure may require a
3dB reduction of power output.
Unit is operational when RTS is asserted
and held in reset when not asserted.
Deleted: i
Power valid for VSWR < 1.15:1
Deleted: Volatage
Deleted: ¶
Power Amplifiers must be in “standby”
or “off” state when changing the antenna
switch setting.
Table 1: Specifications
Vytek TRM-1 PRD
Formatted
Deleted:
Hardware Block Diagram
LEDs
Fans
TRM-1 Power Amplifier
VyTek Wireless
Battery
Input
Tx
Alarm
10 to 18 volts
External
I/O
Connector
Control
Power Supply
Module
48 volts
110
VAC
Input
48 volts
Power Supply
Module
Voltage
Regulators
and
Switches
15 volts
Atmel
ATmega128
Processor
5 volts
FPGA
Atmel
EP1K30
DAC Outputs
A/D Inputs
Control
Controller Module
Supply Power
Input Power
Analog Controls
and Status
Temp
Sensor
LPF
Driver
Limiting Amplifier
Power
Amplifier
Power Amplifier Module
Fwd Pwr
RF Input
Supply Power
Input Power
Temp
Sensor
LPF
Limiting Amplifier
Vytek TRM-1 PRD
Analog Controls
and Status
Driver
Rev Pwr
LPF
RF Output
RF Output Module
Power
Amplifier
Power Amplifier Module
Page Break
Interface Definitions
Power Supply Connector
Pin
Name
+Vout
+Vout
GND
GND
-Sense
Vout Adjust
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
OC Alarm
Iout Monitor
Share Bus
Enable
+Vout
+Vout
GND
GND
+Sense
NC
V Shift
OV Alarm
GND
Rect Fail
+Vout
GND
GND
GND
SD0
SD1
AC Sense
OV Adjust
29
30
Lamp Test
On / Off
Function
Output Voltage
Output Voltage
Output Return
Output Return
Connect to Ground
Output Voltage Control. Vout = 59v – 2.42v – 1.8 x {Vout Adjust}
59v – 2.42v – 1.8 x {Vout Adjust = 5v} = 47.6 volts
Over Current Alarm
Output Current Monitor. Iout monitor = Iout x 10-4. Not Connected.
Connect with Share Bus of the other Power Supply. Not Connected.
Low = Enable Power Supply. Floating or High = Turn Power Supply Off.
Output Voltage
Output Voltage
Output Return
Output Return
Connect to Output Voltage
No Connect
Voltage Shift Input. Connected to Vout.
Over Voltage Alarm
Output Return
High = Power Supply is OK. Low = Power Supply Failure.
Output Voltage
Output Return
Output Return
Output Return
Serial Data Option. Not Connected.
Serial Data Option. Not Connected.
Low = AC is < 60 VAC. High if AC is > 60 VAC.
Over Voltage Adjustment Pin. OV Level = 60v – 1.2 x {OV Adjust}
60v – 1.2 x {OV Adjust = 5v} = 54 volts
60v – 1.2 x {OV Adjust = 8.3v} = 50 volts
Turn on all LEDs for Testing. Not Connected
Front Panel Power Switch Status. Low = On, High = Off
Table 2: Power Supply Connector
Formatted
Deleted: . Not Connected.
Deleted: ,
Deleted: 1
Deleted: ,
Deleted: 2
Deleted: Not Connected.
Deleted: 3
Deleted: OV Level = 60v – 2.2 x {OV
Adjust}
Deleted: Not Connected.
Deleted: 4
Deleted: 25
Formatted
Deleted: Logic
Deleted: Controller: Power Supply
Logic Connector
Vytek TRM-1 PRD
Deleted: Table : Controller: Rear Panel
I/O Connector
Formatted
Power Amplifier Module Connector
Pin
A1
A2
10
11
12
13
14
15
Name
GND
+48V
Installed
Deleted: In1 Pwr
Deleted: Fwd Bias
I/O
Input
Input
Output
Function
High Current Ground
High Current Power Supply (+48 volts)
“Amplifier Installed” signal to the Controller.
Connected to Ground inside of the PA. Floats high when
module is not plugged-in.
Not Connected
V_out
Output
Low Current Power Supply Loopback to Controller
Amp_Select
Input
Amplifier Select Switching:
(+15 volts = Amplifier 1, Low = Amplifier 2)
Note: Internal pullup to +15 volts required.
+5V_Controller Input
+5 volts from the Controller
RF_Detect
Output
RF Input Detector
Fan_On
Input
Fan Power On Signal (+28V = Fan On, 0V = Fan Off)
TX_LED
Input
Drive to the TX LED from Controller
RF_det_thresh Input
RF Detector threshold voltage from Controller
Fan_2
Output
Fan #2 Current Sensor Analog Signal
Address
Input
Amplifier Identification:
(0 = Amplifier 1, Float = Amplifier 2)
Amp_Bias
Input
Bias Voltage (Analog Control Signal from Controller)
Temp
Output
Temperature analog signal
Fan_1
Output
Fan #1 current sensor analog signal
Alarm LED
Input
Alarm LED Digital Control Signal (0 = OK, 1 = Alarm)
Table 3: Power Amplifier Connector
Deleted: PA #1 Input Power Sensor
Analog Signal
Deleted: Forward Power Bias
Deleted: In2 Pwr
Deleted: Rev Bias
Deleted: PA #2 Input Power Sensor
Analog Signal
Deleted: Reverse Power Bias
Deleted: Driver
Deleted: +15V
Deleted: BiasDriver Bias
SignalTemp1PA #1 Temperature Sensor
Analog SignalTemp2PA #2 Temperature
Sensor Analog Signal
Deleted: Table : Controller: Control &
Status Connector¶
Deleted: <#>¶
Formatted
Deleted: In Pwr
Deleted: Input Power Sensor Analog
Signal
Deleted: Driver Bias
Deleted: DC Voltage… Out to PA
... [21]
Deleted: Temperature Sensor Analog
Signal
Filter / Coupler Module Connector
Pin
Name
Ground
+5v_Controller
Fwd Offset
Fwd Power
Rev Offset
Rev Power
NC
NC
NC
I/O
Function
Input
Input
Output
Input
Output
+5 volts from Controller
Bias Voltage for Forward Power Detector
Forward Power Detector Analog Signal
Bias Voltage for Reverse Power Detector
Reverse Power Detector Analog Signal
... [20]
Deleted: Temp
Deleted: …
... [22]
Deleted: Low = Amplifier 1,
... [23]
Deleted: BiasA…
... [24]
Deleted: d…
... [25]
Deleted: S
Deleted: s
Deleted: elect D
Deleted: d
Deleted: igital
Deleted: …s
... [26]
Deleted: 0…#1…1…#2
... [27]
Deleted: a…s
... [28]
Deleted: Gnd
Deleted: B
... [29]
Deleted: analog
Deleted: d…s
Formatted
Deleted: 5
Deleted: : Controller
Vytek TRM-1 PRD
... [30]
Rear Panel DC Power Connector
Pin
Name
Monitor
Gnd
Gnd
Battery
Function
Controller Power Monitor (Don’t apply an
external voltage to this pin, but it may be
used to monitor the actual controller voltage
if desired.)
Ground
Ground
Battery Backup Power (8 to 24 volts)
Rear Panel RS232 Connector
DB9 Female Connector
Vytek TRM-1 PRD
Pin
Name
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
Function
No Connection
Receive Data from the unit
Transmit Data to the unit
No Connection
Ground
No Connection
Active level enables the unit. Inactive level
resets the unit, Jumper Selectable
No Connection
No Connection
Table 4: Rear Panel RS232 Connector
Deleted: 6
Controller Connections
Pin
J1-1
J1-2
J1-3
Name
+5v
Temp 2
Gnd
I/O
Output
Input
Logical Connection
Voltage Regulator
CPU ADC2
Function
+5 Volts from Controller
Temperature Sensor Signal from Amp #2
Pin
J2-1
Name
Fan1
I/O
Input
Function
Fan #1 current sensor analog signal
J2-2
Fan2
Input
J2-4
Fan_On
Output
J2-5
Alarm LED1
Output
Logical Connection
FANA MUX
to CPU ADC6
FANB MUX to
CPU ADC6
FANC MUX to
CPU ADC6
FPGA Pin 130 ->
Q6 FET Switch
CPU PB0
J2-6
Alarm LED2
Output
CPU PB6
J2-7
J2-8
J2-9
J2-10
J2-11
J2-12
J2-13
J2-14
TX LED
Output
Rev Power
Rev Offset
Input
Output
Output
Amp Select
Output
CPU PB2
Ground
CPU ADC1
DAC U11-B
Voltage Regulators
Ground
TP16
CPU PB5 -> Q5
FET (Open Drain)
J2-3
Input
Fan #2 current sensor analog signal
Unused current sensor analog signal
Fan Power On Signal
(+28V = Fan On, 0V = Fan Off)
Amp #1 Alarm LED Control Signal
(0 = OK, 1 = Alarm)
Amp #2 Alarm LED Control Signal
(0 = OK, 1 = Alarm)
Transmit LED (1 = On)
Deleted: Select Digital
Deleted: 0
Deleted: off
Deleted: 1
Deleted: on
Reverse Power Detector Analog Signal
Bias Voltage for Reverse Power Detector
+5 Volts
Amplifier Select Switching:
(Low = Amplifier 1, Hi-Z = Amplifier 2)
Deleted: CPU PB5 to
Deleted: FPGA Pin 135
Deleted: Hi-Z
Pin
J5-1
J5-2
J5-3
J5-4
J5-5
Name
Power
Gnd
Gnd
Curr Sens
+5v
Pin
J15-1
J15-2
J15-3
J15-4
J15-5
J15-6
J15-7
Name
I/O
Output
(mod1_bias)
(mod2_bias)
(mod3_bias)
(mod4_bias)
Amp 1 Inst
(intspi_cs1)
RF_det_thresh
(drvr_stg_bias)
Output
Output
Output
Output
Input
J15-8
Vytek TRM-1 PRD
I/O
Input
Input
Output
Output
Logical Connection
Voltage Regulators
Ground
Ground
CPU ADC5
Voltage Regulator
Deleted: Low
Function
Input Supply Voltage (+28 volts nominal)
Current Sensor Input
+5 Volts
Logical Connection Function
Voltage Regulator
+5 Volts (Analog)
Ground
DAC U13-A
DAC U13-B
DAC U13-C
DAC U13-D
FPGA Pin 59
0 = Amplifier 1 Installed
(Must be pulled up by FPGA.)
DAC U12-D
PA RF Detector threshold voltage
10
J15-9
J15-10 Amp 2 Inst
(intspi_clk)
J15-11 Fwd Power
(fwd_pwr)
J15-12 Fwd Offset
(fwd_offset)
J15-13 PS1 AC
(intspi_reset)
J15-14 PS2 AC
(intspi_miso)
J15-15
J15-16
Pin
Name
J16-1
J16-2
J16-3
J16-4
J16-5
J16-6
J17-1
J17-2
TP15
FPGA Pin 67
Input
CPU ADC0
0 = Amplifier 2 Installed
(Must be pulled up by FPGA.)
Forward Power Detector Analog Signal
Output
DAC U11-A
Bias Voltage for Forward Power Detector
Input
FPGA Pin 70
Input
Inverter ->
FPGA Pin 68
NC
NC
Low = AC is < 60 VAC. High if AC is >
60 VAC.
Low = AC is < 60 VAC. High if AC is >
60 VAC.
I/O
Output
Output
Output
Output
Logical
Connection
Power Filter
Ground
DAC U13-A
DAC U11-C
DAC U11-D
CPU PB4
Output
CPU PB1
Input
CPU ADC3
Output
Output
Output
Voltage Regulator
DAC U12-B
DAC U12-A
Output
Output
I/O
NC
NC
Power Filter
DAC U12-C
CPU BP3
Output
(mod1_bias)
(rms_threshold)
(peak_threshold)
PS1 Disable
(rms_alarm)
J16-7 PS2 Disable
(peak_alarm)
J16-8 Temp 1
(pd_temp)
J16-9 +15v
J16-10 (phase_adjust)
J16-11 Bias
(attenuation)
J16-12
J16-13 (fuse_rms_offset)
J16-14 (rffuse_reset)
J16-15
J16-16
Pin
Input
Name
PS1 Fail
(extspi_a5)
J17-3 PS1 Switch
(extspi_a4)
J17-4 PS2 Fail
(extspi_a3)
J17-5 PS2 Switch
(extspi_a2)
J17-6 RF Detect 1
Vytek TRM-1 PRD
I/O
Input
Input
Input
Input
Input
Logical
Connection
Ground
Inverter ->
FPGA Pin 43
Inverter ->
FPGA Pin 41
Inverter ->
FPGA Pin 39
Inverter ->
FPGA Pin 38
Inverter ->
Function
+5 Volts (Analog)
0 = Enable Power Supply #1
1 = Power Supply #1 Off
0 = Enable Power Supply #2
1 = Power Supply #2 Off
Temperature Sensor Signal from Amp
#1
+15 volts
Bias Voltage for Power Amplifiers
+5 Volts (Analog)
Function
0 = Power Supply Failure
1 = Power Supply is OK
Front Panel Power Switch Status:
(0 = On, 1 = Off)
0 = Power Supply Failure
1 = Power Supply is OK
Front Panel Power Switch Status:
(0 = On, 1 = Off)
RF Detected at Power Amplifier 1
11
(extspi_a1)
RF Detect 2
(extspi_a0)
J17-8 PS1 OV
(extspi_clk)
J17-9 PS1 OC
(extspi_mosi)
J17-10 (extspi_miso)
J17-7
Input
Input
Input
Output
J17-11 PS2 OV
(extspi_backplid0)
J17-12 PS2 OC
(extspi_backplid1)
J17-13
J17-14
J17-15
J17-16
Input
Input
FPGA Pin 37
Inverter ->
FPGA Pin 36
Inverter ->
FPGA Pin 46
Inverter ->
FPGA Pin 48
Inverter ->
FPGA Pin 47
Inverter ->
FPGA Pin 83
Inverter ->
FPGA Pin 86
(0 = No, 1 = Yes)
RF Detected at Power Amplifier 2
(0 = No, 1 = Yes)
Over Voltage Alarm
Over Current Alarm
Over Voltage Alarm
Over Current Alarm
NC
NC
Ground
NC
FPGA Register Definitions
Note that CS signal from CPU must be set high in order for the FPGA to be selected. This signal comes from
the CPU’s PE2 pin.
Address lines shown are used to select between the internal registers as defined below. All other address lines
are “don’t cares.”
A11
A10
A9
A8
Bit(s)
R/W
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Read
Vytek TRM-1 PRD
Deleted: 1
Function
NC – Read as 0
PS1 Front Panel Power Switch Status:
(0 = On, 1 = Off)
PS1 AC Detected (0 = No, 1 = Yes)
NC – Read as 0
NC – Read as 0
PS1 Over Voltage Alarm Input
(1 = OK, 0 = Alarm)
PS1 Over Current Alarm Input
(1 = OK, 0 = Alarm)
PS1 Status:
(0 = Failure, 1 = OK)
Deleted: 68h
Deleted: 68h
Deleted: 1
Deleted: 68h
Deleted: 1
Deleted: 68h
Deleted: 1
Deleted: 68h
Deleted: 1
Deleted: 68h
Deleted: 1
Deleted: 0
NC – Read as 0
PS2 Front Panel Power Switch Status:
(0 = On, 1 = Off)
PS2 AC Detected (0 = No, 1 = Yes)
NC – Read as 0
NC – Read as 0
PS2 Over Voltage Alarm Input
(1 = OK, 0 = Alarm)
PS2 Over Current Alarm Input
Deleted: 1
Deleted: 68h
Deleted: 1
Deleted: 0
Deleted: 1
Deleted: 68h
Deleted: 1
Deleted: 0
Deleted: 1
12
0
Read
(1 = OK, 0 = Alarm)
PS2 Status:
(0 = Failure, 1 = OK)
7-0
R/W
Read / Write Scratch Register
Read
Read
Read
Read
Read
Read
Read
Read
Amp 1 Installed (1 = No, 0 = Yes)
RF Detect 1 (0 = No, 1 = Yes)
NC – Read as 0
NC – Read as 0
Amp 2 Installed (1 = No, 0 = Yes)
RF Detect 2 (0 = No, 1 = Yes)
NC – Read as 0
NC – Read as 0
Write
Write
Write
Write
Fan Control (0 = Off, 1 = On)
DAC_Enable
(0 = Disable DACs, 1 = Enable DACs)
Fan Select A Control
Fan Select B Control
7-0
7-0
7-0
7-0
Write
Write
Write
Write
DAC1
DAC2
DAC3
DAC4
Deleted: 0
Deleted: 1
Deleted: 0
Deleted: 1
Deleted: 0
Deleted: 1
Deleted: #1 Low Byte
Deleted: 7-0
Deleted: Write
Deleted: DAC1 #1 High Byte
Deleted: 7-0
Deleted: Write
Deleted: DAC1 #2 Low Byte
Software Description
Deleted: 7-0
Deleted: Write
Alarms Types & Behavior
Deleted: DAC1 #2 High Byte
Deleted: ¶
Power Amplifier Alarms
Alarm Type
Fan Failure
Status Byte
bit
PA #1 Alarm Occurrence
Cut to PA #2
PA #2 Alarm Occurrence
Cut to PA #1
High Reverse
Shutdown
Shutdown
Low Pwr
Cut to PA #2
Stay at PA #2
Overcurrent
Cut to PA #2
Cut to PA #1
Thermal
Cut to PA #2
Cut to PA #1
High Pwr
Cut to PA #2
Cut to PA #1
cut back and forth to PA #1
& PA #2,"failcount" times
(to find non-cut condition)
The table below lists all of the power amplifier alarm types and the cutover behavior of each alarm.
Formatted
Table 5: Power Amplifier Alarms
Vytek TRM-1 PRD
Deleted: 7
13
Status information for both PA #1 and PA #2 is read via a 3 byte (24-bit) status word called PAStatusWord24,
as described below. The amplifier sets the bit when the relevant condition occurs. The bit will stay set until
cleared by a write of a 0 to the corresponding bit in the status register –OR– when the alarming amplifier is
removed or taken offline, then manually brought back online (the failure count will also be cleared in this case).
PAStatusWord24: There is a 3 byte (24-bit) status word:
Byte #1: Generic Info
7, 6
5, 4, 3
Active PA
PA #1 failures causing cutover
00 = none
000=0
01 = PA #1
001=1
10 = PA #2
010=2
11 = INVALID
011=3
100=4
NOTE: these bits 101=5
are READ ONLY 110=6
111=7+
Deleted: ¶
2,1,0
PA #2 failures causing cutover
000=0
001=1
010=2
011=3
100=4
101=5
110=6
111=7+
Byte #2: PA#1 Status Byte
Fan Warn High Reverse
Low Pwr
Overcurrent
Thermal
High Pwr NotInstalled
Low Pwr
Overcurrent
Thermal
High Pwr NotInstalled
Byte #3: PA#2 Status Byte
Fan Warn High Reverse
** All alarm bits in PA #1 and PA #2 are latched, and remain set even if the condition has gone away with or without transmission
except the NotInstalled flag (bit 0)
Vytek TRM-1 PRD
14
Power Supply Alarms
In addition to the power amplifier alarms, Status information for both PS #1 and PS #2 is read via a 2 byte (16bit) status word called PSStatusWord16, as described below. The amplifier sets the bit when the relevant
condition occurs. The bit will stay set until cleared by a write of a 0 to the corresponding bit in the status
register.
PSStatusWord16: There is a 2 byte (8-bit) status word:
Byte #1: PS#1 Status Byte
Overvoltage
Fail
Overcurrent
Byte #2: PS#2 Status Byte
Fail
Overcurrent
Overvoltage
ACSense
0 = good
1 = bad
ACSense
SwitchOn
0 = on
1 = off
SwitchOn
Offline
Offline
Deleted: ¶
“Push” Enabling for alarm conditions
The TRM-1 can be configured to send unsolicited alarm information (see command table below) on the
occurrence of a power amplifier or power supply alarm. The unsolicited alarm information is sent as
PAStatusWord24 or PSStatusWord16 through the serial port. It is sent once on the setting of any alarm bits in
Byte 2 or Byte 3 of PAStatusWord24, or if a Power Supply alarm occurs, Byte 1 or Byte 2 in PSStatusWord16.
The pushed alarm status word will be sent in ASCII format (as are all commands and responses). It will have
the following format. Note that numeric values are given in hex.
Deleted: :
PAStatusWord24=488000
or
PSStatusWord16=0400
Deleted: disabled
By default, alarm “push” is enabled.
Formatted
Formatted
Vytek TRM-1 PRD
15
Alarm Algorithms
Several alarm scenarios are described in the flow diagrams below.
Power On:
enable active PA
Update LEDs on active
PA
Update LEDs on
inactive PA
push enabled
Send StatusWord24, if
PAn Status Byte != 0
PA #1 Alarms with Fan Failure
PA #1 Fan Failure
detected
Inc PA #1 fail count
Update PA #1 LED
PA #2 fail count < TBD
Switch to PA #2
push enabled
Send StatusWord24
PA #1 Alarms with Fan Failure
& PA #2 Alarms with Thermal
PA #2 Thermal
detected
Inc PA #2 fail count
Update PA #2 LED
PA #1 fail count > TBD
Shutdown
push enabled
Vytek TRM-1 PRD
Send StatusWord24
16
State Machine
TRM-1 CPU Controller: State Machine
Initialization
RFdetect
== 0?
no
RampUp no
true?
yes
yes
RampUp = true
RampUp = false
Read forward pwr
atten = (0.03125*(FwdTarg - FwdRead)) / 0.25 + atten_prev
atten_prev = atten
Power Leveling
Read temperature
Temperature
Alarm
temp >
100?
yes
no
PAStatWord24:Set Thermal Alarm Flag
Change active PA #
Inc PA fail counter
Set LED red
Amp
Cutover
PAStatWord24:Set Fan Fail Flag
Change active PA #
Inc PA fail counter
Set LED red
Amp
Cutover
PAStatWord24:Set High Pwr Flag
Change active PA #
Inc PA fail counter
Set LED red
Amp
Cutover
Read Fan current
Fan Fail
Alarm
no
no
Fans OK?
yes
High Pwr
Alarm
yes
measured_fwd
>high thresh?
no
Low Pwr
Alarm
measured_fwd
< low thresh?
yes
PAStatWord24:Set Low Pwr Flag
Set LED red
no
Read Reflected Power
High Reverse
Alarm
Ref Pwr >
rev_thresh?
yes
PAStatWord24:Set High Reverse Flag
Change active PA #
Inc PA fail counter
Set LED red
Amp
Cutover
PAStatWord24:Set Overcurrent Flag
Change active PA #
Inc PA fail counter
Set LED red
Amp
Cutover
no
Read DC Voltage
Read DC Current
Overcurrent
Alarm
Excess yes
current?
no
PA Alarm Control
PSFail
high?
no
yes
OCAlarm yes
high?
PSStatWord16:Set Fail Flag
Set Offline Flag
Disable PS
Set LED red
Amp
Cutover
PSStatWord16:Set Overcurrent Flag
Set Offline Flag
Disable PS
Set LED red
Amp
Cutover
PSStatWord16:Set Overcurrent Flag
Set Offline Flag
Disable PS
Set LED red
Amp
Cutover
PSStatWord16:Set ACSense Flag
Set Offline Flag
Disable PS
Set LED red
Amp
Cutover
no
OVAlarm yes
high?
no
ACSenseyes
bad?
no
PS Alarm Control
Manual PA/
PS Offline
PA & PS Offline Mgmt
no newlline
entered?
yes
Process CLI cmd
Vytek TRM-1 PRD
CLI
17
PA Cutover
PAx fail: Cutover to PAy
PSx disable
PAy fail
counter >=
MAXFAIL
yes
no
PSy switch
off?
yes
no
CLI cmd
override?
yes
no
PSy enable
Deselect PAx,
select PAy
Return to State
Machine
Manual PA/PS Offline
Manual PA/PS offline
mgmt
PS x currently
offline (switch or
SW)?
yes
no
PA x currently
installed?
no
yes
Clear PA x
alarms
Clear PA x fail
counter
Vytek TRM-1 PRD
Return to State
Machine
18
Serial Port Commands available to User
The table below lists all of the serial commands available to the user. All configuration parameters that are
modified using the serial commands are stored in non-volatile memory and will be applied through subsequent
power/reset cycles.
CMD
PARAMETERS
CUrrent
Units of
Measure
Range
Amps
0 –- 40
Resolution
Default
Value
0.01
MEANING/ACTION
Get the DC supply current
DOWNLOAD
Start xmodem1k download
Failcount
FWd
Watts
250 - 500
1-255
0.01
400
Get/Set forward power
Get/Set the high power alarm
high threshold
Get/Set the high power alarm
low threshold
FWd
Thresh High m
Watts
0 – 1024
0.01
500
FWd
Thresh Low m
Watts
0 – 1024
0.01
200
PA
PA
Status m
PS
m ON | OFF
PS
Status m
PUsh
YES | NO
000000-ffffff
Get/Set the maximum PA fail
count
Gets/Sets active PA
m = 0 ==> both PAs disabled
m = 1 ==> PA #1 enabled
m = 2 ==> PA #2 enabled
m = 3 ==> firmware controlled
Set/Get PAStatusWord24
Set/Get Power Supply m online
status
0000-ffff
Set/Get PSStatusWord16
YES
RESet
Set/Get alarm "push" status
Performs a hardware reset of
the controller
REV
Watts
0 – 1024
0.01
Watts
0 – 1024
0.01
Display reverse power
100
REV
Thresh m
SErial
xxxx
TEmp
PA x
Deg C
-50 – +100
0.01
TEmp
Thresh High m
Deg C
-50 – +100
0.01
100
Gets/Sets the amplifier high
temperature alarm threshold
TEmp
Thresh Low m
Deg C
-50 – +100
0.01
-30
Gets/Sets the amplifier low
temperature alarm threshold
Get the serial number (max 16
chars)
VEr
VOltage
Gets/Sets the reverse power
alarm threshold
Gets linear PA x temperature
Deleted: ¶
¶
Status Word Definition¶
¶
Formatted
Deleted: T
Get firmware version
Volts
0 – 63
0.01
Formatted
Get DC supply voltage
Deleted: 8
Formatted
Table 6: Serial Port Commands available to User
Deleted: ¶
¶
Vytek TRM-1 PRD
19
Deleted: Alarm Behaviour¶
All Warn and Shutdown flags remain
Deleted: Serial Port Commands
available to User¶
CMD
... [31]
LEDs
Formatted: Bullets and Numbering
PA #1 and PA #2 will each have LEDs indicating their status, as well as a single Tx LED indicating the
presence of RF output greater than 10 Watts.
GREEN
Alarm LED
Tx
●
OK
RF Output
RED
●
Alarm Condition
active
OFF
Deleted: ¶
●
PA off w/no
alarms
No RF Output
Deleted: Table 1¶
¶
Alarm Behaviour¶
All Warn and Shutdown flags remain ¶
Formatted
Vytek TRM-1 PRD
20
Page 2: [1] Deleted
Lori Welte
7/2/2003 11:20:00 AM
Technical Brief.....................................................................................................................3
Scope................................................................................................................................3
Functionality ....................................................................................................................3
Design Philosophy ...............................................................................................................3
Robustness .......................................................................................................................3
Implementation and Construction....................................................................................3
Operation..........................................................................................................................4
Specifications.......................................................................................................................4
Hardware Block Diagram ....................................................................................................6
Interface Definitions ............................................................................................................7
Power Supply Connector .................................................................................................7
Power Amplifier Module Connector ...............................................................................8
Filter / Coupler Module Connector..................................................................................8
Rear Panel DC Power Connector.....................................................................................9
Rear Panel RS232 Connector...........................................................................................9
Controller Connections ..................................................................................................10
FPGA Register Definitions ............................................................................................12
Software Description .........................................................................................................13
Alarms Types & Behavior .............................................................................................13
Power Amplifier Alarms............................................................................................13
Power Supply Alarms ................................................................................................15
“Push” Enabling for alarm conditions ...........................................................................15
Alarm Algorithms ..........................................................................................................16
State Machine.................................................................................................................17
PA Cutover.....................................................................................................................18
Manual PA/PS Offline ...................................................................................................18
Serial Port Commands available to User .......................................................................19
LEDs ..................................................................................................................................20
Page 2: [2] Deleted
Art Lashbrook
7/1/2003 12:46:00 PM
Technical Brief.....................................................................................................................3
Scope................................................................................................................................3
Functionality ....................................................................................................................3
Design Philosophy ...............................................................................................................3
Robustness .......................................................................................................................3
Implementation and Construction....................................................................................3
Operation..........................................................................................................................4
Specifications.......................................................................................................................4
Hardware Block Diagram ....................................................................................................6
Interface Definitions ............................................................................................................7
Power Supply Connector .................................................................................................7
Power Amplifier Module Connector ...............................................................................8
Filter / Coupler Module Connector..................................................................................8
Rear Panel DC Power Connector.....................................................................................9
Rear Panel RS232 Connector...........................................................................................9
Controller Connections ..................................................................................................10
FPGA Register Definitions ............................................................................................12
Software Description .........................................................................................................13
Alarms Types & Behavior .............................................................................................13
Power Amplifier Alarms............................................................................................13
Power Supply Alarms ................................................................................................15
“Push” Enabling for alarm conditions ...........................................................................15
Alarm Algorithms ..........................................................................................................16
State Machine.................................................................................................................17
PA Cutover.....................................................................................................................18
Manual PA/PS Offline ...................................................................................................18
Serial Port Commands available to User .......................................................................19
LEDs ..................................................................................................................................20
Page 2: [3] Deleted
Lori Welte
6/23/2003 8:55:00 AM
Technical Brief.....................................................................................................................3
Scope................................................................................................................................3
Functionality ....................................................................................................................3
Design Philosophy ...............................................................................................................3
Robustness .......................................................................................................................3
Implementation and Construction....................................................................................3
Operation..........................................................................................................................4
Specifications.......................................................................................................................4
Hardware Block Diagram ....................................................................................................6
Interface Definitions ............................................................................................................7
Power Supply Connector .................................................................................................7
Power Amplifier Module Connector ...............................................................................8
Filter / Coupler Module Connector..................................................................................8
Rear Panel DC Power Connector.....................................................................................9
Rear Panel RS232 Connector...........................................................................................9
Controller Connections ..................................................................................................10
FPGA Register Definitions ............................................................................................12
Software Description .........................................................................................................13
Alarms Types & Behavior .............................................................................................13
Power Amplifier Alarms............................................................................................13
Power Supply Alarms ................................................................................................15
“Push” Enabling for alarm conditions ...........................................................................15
Alarm Algorithms ..........................................................................................................16
State Machine.................................................................................................................17
Serial Port Commands available to User .......................................................................18
LEDs ..................................................................................................................................19
Page 2: [4] Deleted
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4/10/2003 7:16:00 PM
Technical Brief.......................................................................................................................
Scope..................................................................................................................................
Functionality ......................................................................................................................
Design Philosophy .................................................................................................................
Robustness .........................................................................................................................
Implementation and Construction......................................................................................
Operation............................................................................................................................
Specifications.........................................................................................................................
System ......................................................................................................................................
Power Amp ...................................................................................................................................
Controller.....................................................................................................................................
Hardware Block Diagram ......................................................................................................
Hardware Description ..........................................................................................................7
Mechanical Design...............................................................................................................7
Interconnect Definitions.........................................................................................................
Power Supply Logic Connector .........................................................................................
Controller: Rear Panel I/O Connector.............................................................................8
Controller: Control & Status Connector .........................................................................8
Power Amplifier: Controller Connector ...........................................................................
Software Description .............................................................................................................
Alarms Types & Behavior .................................................................................................
Power Amplifier Alarms................................................................................................
Power Supply Alarms ....................................................................................................
“Push” Enabling for alarm conditions ...............................................................................
Alarm Algorithms ..........................................................................................................11
State Machine.....................................................................................................................
Serial Port Commands available to User ...........................................................................
LEDs ......................................................................................................................................
Page 2: [5] Deleted
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4/7/2003 1:54:00 PM
Technical Brief.....................................................................................................................3
Scope................................................................................................................................3
Functionality ....................................................................................................................3
Design Philosophy ...............................................................................................................3
Robustness .......................................................................................................................3
Implementation and Construction....................................................................................3
Specifications.......................................................................................................................4
Parameter ............................................................................................................................4
Customer Specification ..........................................................................................................4
Design Goals .......................................................................................................................4
Notes ..................................................................................................................................4
System ....................................................................................................................................4
Power Amp .................................................................................................................................4
Controller...................................................................................................................................5
Hardware Block Diagram ....................................................................................................6
Hardware Description ..........................................................................................................7
Mechanical Design...............................................................................................................7
Interconnect Definitions.......................................................................................................7
Power Supply Logic Connector .......................................................................................7
Controller: Power Supply Logic Connector ...................................................................7
Controller: Rear Panel I/O Connector.............................................................................8
Controller: Control & Status Connector .........................................................................8
Power Amplifier: Controller Connector .........................................................................9
Software Description ...........................................................................................................9
Alarms Types & Behavior ...............................................................................................9
Power Amplifier Alarms..............................................................................................9
Power Supply Alarms ................................................................................................10
“Push” Enabling for alarm conditions ...........................................................................10
Alarm Algorithms ..........................................................................................................11
Serial Port Commands available to User .......................................................................12
LEDs ..................................................................................................................................13
Page 2: [6] Deleted
Art Lashbrook
4/3/2003 3:56:00 PM
Technical Brief.......................................................................................................................
Scope..................................................................................................................................
Functionality ......................................................................................................................
Design Philosophy .................................................................................................................
Robustness .........................................................................................................................
Implementation and Construction......................................................................................
Specifications.........................................................................................................................
Parameter ..............................................................................................................................
Customer Specification ............................................................................................................
Design Goals .........................................................................................................................
Notes ....................................................................................................................................
System ......................................................................................................................................
Power Amp ...................................................................................................................................
Controller.....................................................................................................................................
Hardware Block Diagram ......................................................................................................
Hardware Description ............................................................................................................
Mechanical Design.................................................................................................................
Interconnect Definitions.........................................................................................................
Power Supply Logic Connector .........................................................................................
Controller: Power Supply Logic Connector .....................................................................
Controller: Rear Panel I/O Connector...............................................................................
Controller: Driver Module Connector ..............................................................................
Controller: Power Amplifier Module Connector..............................................................
Controller: RF Output Module Connector........................................................................
Driver: Controller Connector............................................................................................
Power Amplifier: Controller Connector ...........................................................................
Software Description .............................................................................................................
Alarms Types & Behavior .................................................................................................
Power Amplifier Alarms................................................................................................
Power Supply Alarms ....................................................................................................
“Push” Enabling for alarm conditions ...............................................................................
Alarm Algorithms ..............................................................................................................
Serial Port Commands available to User ...........................................................................
LEDs ......................................................................................................................................
Page 2: [7] Deleted
Lori Welte
3/27/2003 11:33:00 AM
Technical Brief.....................................................................................................................3
Scope................................................................................................................................3
Functionality ....................................................................................................................3
Design Philosophy ...............................................................................................................3
Robustness .......................................................................................................................3
Implementation and Construction....................................................................................3
Specifications.......................................................................................................................4
Parameter ............................................................................................................................4
Customer Specification ..........................................................................................................4
Design Goals .......................................................................................................................4
Notes ..................................................................................................................................4
System ....................................................................................................................................4
Power Amp .................................................................................................................................4
Controller...................................................................................................................................5
Hardware Block Diagram ....................................................................................................6
Hardware Description ..........................................................................................................7
Mechanical Design...............................................................................................................7
Interconnect Definitions.......................................................................................................7
Power Supply Logic Connector .......................................................................................7
Controller: Power Supply Logic Connector ...................................................................7
Controller: Rear Panel I/O Connector.............................................................................8
Controller: Driver Module Connector ............................................................................9
Controller: Power Amplifier Module Connector............................................................9
Controller: RF Output Module Connector....................................................................10
Driver: Controller Connector........................................................................................10
Power Amplifier: Controller Connector .......................................................................11
Software Description .........................................................................................................12
Serial Port Commands available to User .......................................................................12
Status Word Definition ..................................................................................................12
Alarm Behaviour............................................................................................................13
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Table 1: Specifications.........................................................................................................................................
Table 2: Power Supply Connector .......................................................................................................................
Table 5: Power Amplifier Connector...................................................................................................................
Table 6: Rear Panel RS232 Connector ................................................................................................................
Table 7: Power Amplifier Alarms........................................................................................................................
Table 8: Serial Port Commands available to User ...............................................................................................
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Table 1: Specifications.........................................................................................................................................
Table 2: Power Supply Connector .......................................................................................................................
Table 5: Power Amplifier Connector...................................................................................................................
Table 6: Rear Panel RS232 Connector ................................................................................................................
Table 7: Power Amplifier Alarms........................................................................................................................
Table 8: Serial Port Commands available to User ...............................................................................................
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Table 1: Specifications.........................................................................................................................................
Table 2: Power Supply Connector .......................................................................................................................
Table 5: Power Amplifier Connector...................................................................................................................
Table 6: Rear Panel RS232 Connector ................................................................................................................
Table 7: Power Amplifier Alarms........................................................................................................................
Table 8: Serial Port Commands available to User ...............................................................................................
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Table 1: Specifications......................................................................................................................................
Table 2: Power Supply Logic Connector..........................................................................................................
Table 3: Controller: Rear Panel I/O Connector ...............................................................................................
Table 4: Controller: Control & Status Connector............................................................................................
Table 5: Power Amplifier: Controller Connector ............................................................................................
Table 6: Power Amplifier Alarms ....................................................................................................................
Table 7: Serial Port Commands available to User ...............................................................................................
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Driver Bias
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Driver Bias Signal
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DC Voltage
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Out to PA
Low = Amplifier 1,
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High
BiasA
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Bias Transistor A signal
digital signal
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#1
#2
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Bias Transistor B signal
Serial Port Commands available to User
CMD
PARAMETERS
MEANING/ACTION
Digital Range
COntrol
Sets the control byte m
0-255
CUrrent
Gets the DC supply current.
0.0-19.9
0.0-19.9
FWDRead
Display forward power
0-600
FWDSet
Set the desired forward power
for internal AGC target.
0-600
FWDAlarm
Display or set the FWD power
alarm
0-600
Help
PA
Display all commands with
their definition
Display which PA is active, or
set active PA to m.
RESet
Performs a hardware reset of
the CONTROLLER.
REFRead
Display the reflected power
output
1-2
0-600
REFAlarm
Display or set the reflected
power alarm
0-600
Status
Display the amplifier status
and alarms (if no parameter),
else Set the Status word to m
0-255
TEmp
Gets linear Amp temperature
-40 to +100
TEmp
Gets PreDriver temperature
-40 to +100
Gets DC supply voltage
0.0-40.0
Voltage
Design Philosophy
Robustness
The design will incorporate, to the extent feasible and cost effective, margin against the
specified criteria. In each case the margin is determined from the expected normal
variations in manufacturing parameters and device variations as they apply to the design.
Additionally, the product incorporates robust circuit design to require minimal alignment
or tuning during test. To the extent possible, all components will be surface mount and
utilize multiple source parts.
The amplifier must self-protect against all fault conditions. In particular, care is taken to
prevent damage due to:
Reverse DC voltage
RF overdrive
High VSWR on output
Over-temperature
Failure of any LRU
Implementation and Construction
The amplifier is divided into these sections, each section capable of being tested by itself.
500 watt RF Output Stage. A two-stage power module, field replicable, with
approximately 25dB of gain. Two per unit.
RF Driver/Splitter/AGC Stage. With approximately 20dB of gain. One per unit.
RF switch to select which output stage to operate off of.
RF wattmeter with directional coupler.
DC monitoring (current and voltage)
CPU Controller (bias voltage generation, AGC management, monitoring, CLI,
alarming…)
AC power supply, two per unit. Load-sharing, each with enough capacity to output
1500 watts if needed.
Operation
The amplifier should look like a gain block, with some AGC for power leveling.
It powers up in the “on” state.
Status Word Definition
Status byte For all bits except bit 6, the amplifier sets the bit when the relevant condition
occurs. The bit will stay set until cleared by a write of a 1 to the corresponding bit in the
control register. Bit 6 indicates whether the amplifier is active or shut down. The
amplifier may only be brought back online by writing a 1 to bit 6 of the status byte, but
shutdown may occur either by writing a 0 to bit 6 of the status byte, or by one of the
shutdown conditions being detected.
Fan Warn
Flag
Amp
Online
Amplifier
Reset
Flag
Active
Amp
Overdrive
Warn Flag
Thermal
Warn Flag
Overdrive
Shutdown Flag
Thermal
Shutdown Flag
7
Fan Warn
Amp Online
Reset
Active
Overdrive Warn
Thermal Warn
Overdrive Shutdown
Thermal Shutdown
fan current has exceeded or fallen below fixed high/low thresholds
fan current is within fixed high/low thresholds
amp is online
amp is shutdown
performs a hardware reset on controller
controller is running
amp #2 is currently active
amp #1 is currently active
output power exceeds fixed warn threshold
output power is below fixed warn threshold
temperature exceeds fixed temperature warn threshold
temperature is below fixed temperature warn threshold
output power exceeds fixed overdrive shutdown threshold
output power is below fixed overdrive shutdown threshold
temperature exceeds fixed temperature shutdown threshold
temperature is below fixed temperature shutdown threshold
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